Fix waitForCompletion polling

Later in v3 job object was added state POLLING related with async operations with service brokers.
The check of job state doesn't handle properly POLLING status and doesn't wait at all.

Author: theghost5800

cloudfoundry-util/src/main/java/org/cloudfoundry/util/JobUtils.java

@@ -30,7 +30,9 @@
 import reactor.core.publisher.Mono;
 
 import java.time.Duration;
+import java.util.EnumSet;
 import java.util.List;
+import java.util.Set;
 
 import static org.cloudfoundry.util.DelayUtils.exponentialBackOff;
 
@@ -39,6 +41,8 @@
  */
 public final class JobUtils {
 
+    private static final Set<JobState> FINAL_STATES = EnumSet.of(JobState.COMPLETE, JobState.FAILED);
+
     private static final Integer STATUS_OK = 200;
 
     private JobUtils() {
@@ -92,7 +96,7 @@ public static Mono<Void> waitForCompletion(CloudFoundryClient cloudFoundryClient
      */
     public static Mono<Void> waitForCompletion(CloudFoundryClient cloudFoundryClient, Duration completionTimeout, String jobId) {
         return requestJobV3(cloudFoundryClient, jobId)
-            .filter(job -> JobState.PROCESSING != job.getState())
+            .filter(job -> FINAL_STATES.contains(job.getState()))
             .repeatWhenEmpty(exponentialBackOff(Duration.ofSeconds(1), Duration.ofSeconds(15), completionTimeout))
             .filter(job -> JobState.FAILED == job.getState())
             .flatMap(JobUtils::getError);